GREAT SITE! I have read posts, but most concern lamps not turning off. I have a TA824 coupled with a TVA50 that I programmed myself and has been working great for 2 years. Voicemail works fine but all of a sudden the the message waiting lamps stopped turning on at all 3 extensions when messages are left. I checked lamps are enabled in maintenance console and are set to 5 tries at one minute intervals. I also shut down and rebooted both systems. Can this problem be in the TA824? I assume it is signaled by the TA50 to turn on the lamps, and if so any ideas where I start looking. I have the programming console for the 824 also. Thanks in advance to anyone willing to give a suggestion or two.